Tank



FIG. 1 is a front elevational view of our tank showing our new design;

FIG. 2 a rear elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view thereof;

FIG. 8 is an enlarged view of the encircled portion in FIG. 7;

FIG. 9 is an enlarged view of the encircled portion in FIG. 7;

FIG. 10 is a rear perspective view thereof;

FIG. 11 is an enlarged view of the encircled portion in FIG. 10; and,

FIG. 12 is an enlarged view of the encircled portion in FIG. 10.

The dashed lines in the figures illustrate portions of the tank thatform no part of the claimed design.

CLAIM We claim the ornamental design for a tank, as shown and described.